Originally Posted by Redbullet

Real case: "naked" carbon bike, with no pedals, cages, saddle bag, pump or other accessories:

2300 EUR – bought as new in 2015: SRAM Force 22, rim brakes, 6.65 kg.
Add 690 EUR for inflation to 2023 (30% * 2300)
Add 300 EUR difference for electronic group set
Add 200 EUR difference for disk brakes
RESULT: 3490 EUR for 2023 - SRAM Force Etap, disk brakes, 7.2 kg (added 550 g in weight, since electronic plus disk brakes are heavier)

However, the cost of a 7.2 kg bike at the same provider, with SRAM Force Etap and disk brakes, is 6000 EUR instead of 3490. The difference of 2510 EUR (more than the whole cost of that light bike in 2015) goes to the extra profit of the provider.
I saw very similar evolution to another top provider.